./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:32,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:32,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-31 22:16:32,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:32,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:32,926 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:32,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:32,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:32,928 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:16:32,928 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:16:32,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:16:32,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:16:32,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:32,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:32,933 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:32,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:32,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:16:32,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:32,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:32,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:16:32,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:16:32,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:16:32,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:32,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:32,940 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:32,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:32,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:32,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:16:32,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:16:32,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:32,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:32,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:16:32,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:16:32,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:32,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:16:32,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:16:32,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:16:32,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:16:32,946 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:16:32,947 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5aa4df3bf07993e90fd6085d301926d2fe237de2ffd3a09881087885f4330551 [2024-10-31 22:16:33,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:33,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:33,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:33,290 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:33,291 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:33,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i Unable to find full path for "g++" [2024-10-31 22:16:35,616 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:36,091 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:36,092 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i [2024-10-31 22:16:36,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/data/982b3ed3c/b7320015244f410795dc8915c9ff3987/FLAG9c9d019ba [2024-10-31 22:16:36,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/data/982b3ed3c/b7320015244f410795dc8915c9ff3987 [2024-10-31 22:16:36,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:36,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:36,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:36,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:36,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:36,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:36" (1/1) ... [2024-10-31 22:16:36,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672f7da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:36, skipping insertion in model container [2024-10-31 22:16:36,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:36" (1/1) ... [2024-10-31 22:16:36,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:36,640 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4494,4507] [2024-10-31 22:16:36,649 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4554,4567] [2024-10-31 22:16:37,817 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,819 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,819 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,820 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,822 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,897 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,898 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,902 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,903 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,909 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,910 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,911 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:37,912 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,586 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,587 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,595 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,596 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,603 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,604 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,612 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,633 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,736 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,739 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:38,795 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:38,815 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4494,4507] [2024-10-31 22:16:38,815 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/sv-benchmarks/c/aws-c-common/aws_array_list_erase_harness_negated.i[4554,4567] [2024-10-31 22:16:38,914 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,915 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,916 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,917 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,918 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,934 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,936 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,937 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,938 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,939 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,940 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,940 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:38,941 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,055 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,059 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,061 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,065 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,067 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,067 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,068 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,074 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7793-7804] [2024-10-31 22:16:39,108 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,109 WARN L1657 CHandler]: Possible shadowing of function index [2024-10-31 22:16:39,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:39,429 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:39,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39 WrapperNode [2024-10-31 22:16:39,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:39,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:39,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:39,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:39,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,635 INFO L138 Inliner]: procedures = 678, calls = 1677, calls flagged for inlining = 52, calls inlined = 11, statements flattened = 734 [2024-10-31 22:16:39,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:39,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:39,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:39,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:39,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,771 INFO L175 MemorySlicer]: Split 331 memory accesses to 6 slices as follows [238, 2, 6, 9, 73, 3]. 72 percent of accesses are in the largest equivalence class. The 24 initializations are split as follows [6, 2, 0, 5, 10, 1]. The 243 writes are split as follows [232, 0, 2, 2, 6, 1]. [2024-10-31 22:16:39,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:39,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:39,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:39,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:39,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (1/1) ... [2024-10-31 22:16:39,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:39,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:39,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:39,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bbdcc2c-e84a-4f43-899b-6d160d04d685/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2024-10-31 22:16:39,957 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2024-10-31 22:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:16:39,957 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-31 22:16:39,957 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-31 22:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-31 22:16:39,958 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-31 22:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-31 22:16:39,958 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-31 22:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-31 22:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-31 22:16:39,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-31 22:16:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-10-31 22:16:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-10-31 22:16:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-10-31 22:16:39,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:16:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-31 22:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-31 22:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-31 22:16:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-31 22:16:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:16:39,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint8_t [2024-10-31 22:16:39,962 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint8_t [2024-10-31 22:16:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-31 22:16:39,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-31 22:16:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:39,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-31 22:16:39,964 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-31 22:16:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-31 22:16:39,964 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-31 22:16:39,964 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_size_t [2024-10-31 22:16:39,964 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_size_t [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-31 22:16:39,965 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-10-31 22:16:39,965 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-10-31 22:16:39,965 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:16:39,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:16:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2024-10-31 22:16:39,966 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2024-10-31 22:16:39,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:16:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:16:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:16:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:16:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:16:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-31 22:16:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-31 22:16:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-31 22:16:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-31 22:16:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-31 22:16:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-31 22:16:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-31 22:16:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-31 22:16:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-31 22:16:39,969 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-31 22:16:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-31 22:16:39,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-31 22:16:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:16:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:16:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:16:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:16:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-31 22:16:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-31 22:16:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2024-10-31 22:16:39,971 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2024-10-31 22:16:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure memset_impl [2024-10-31 22:16:39,971 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_impl [2024-10-31 22:16:39,971 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset [2024-10-31 22:16:39,972 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset [2024-10-31 22:16:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-31 22:16:39,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-31 22:16:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:16:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:16:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:16:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:16:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:16:39,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:16:40,395 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:40,398 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:47,224 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-10-31 22:16:47,224 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:47,248 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:47,250 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:16:47,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:47 BoogieIcfgContainer [2024-10-31 22:16:47,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:47,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:16:47,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:16:47,257 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:16:47,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:16:36" (1/3) ... [2024-10-31 22:16:47,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dffac30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:47, skipping insertion in model container [2024-10-31 22:16:47,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:39" (2/3) ... [2024-10-31 22:16:47,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dffac30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:47, skipping insertion in model container [2024-10-31 22:16:47,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:47" (3/3) ... [2024-10-31 22:16:47,263 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_erase_harness_negated.i [2024-10-31 22:16:47,283 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:16:47,283 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:16:47,374 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:16:47,381 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43f65010, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:16:47,381 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:16:47,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-10-31 22:16:47,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-31 22:16:47,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:47,400 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:47,400 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:16:47,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:47,406 INFO L85 PathProgramCache]: Analyzing trace with hash 939077441, now seen corresponding path program 1 times [2024-10-31 22:16:47,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:47,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006090546] [2024-10-31 22:16:47,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:47,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:55,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:16:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:55,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:16:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:55,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:16:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:16:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:16:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:16:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:16:56,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:16:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:16:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:16:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:16:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:16:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-31 22:16:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-31 22:16:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:56,389 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-31 22:16:56,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:56,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006090546] [2024-10-31 22:16:56,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006090546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:56,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:56,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:16:56,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266146678] [2024-10-31 22:16:56,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:56,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:16:56,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:56,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:16:56,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:16:56,434 INFO L87 Difference]: Start difference. First operand has 254 states, 144 states have (on average 1.1875) internal successors, (171), 145 states have internal predecessors, (171), 88 states have call successors, (88), 20 states have call predecessors, (88), 20 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-31 22:17:00,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-31 22:17:04,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []